Major Muscles and Actions Involved
The same muscles are involved as in the back raise with the twist(erector spinae and the deep spinal group). The hamstrings and gluteus maximus contract isometrically to stabilize the hips in a neutral position in order to hold the trunk in line with the lower body. In this exercise the muscles on only one side of the spine undergo dynamic contraction as you rotate through the full 180° ROM.
The sports uses are the same as in the back raise with the twist
Did you know...
- Keep in mind that this is not an easy exercise. It takes great isometric strength to hold a level straight-line body position and at the same time rotate a full 90° to both sides. Thus you should not attempt this exercise until you can do the back raise with a twist with ease and hold yourself level while rotating.
- In order to go through a full range of motion be sure that you do not use too heavy a weight. Range of motion in this exercise is more important than how much weight you are using. Also, do not use a swinging action to raise the weights. Be sure that you maintain the arm-shoulder complex in the same position at all times.